Pith Number

pith:2Q5CXHIL

pith:2010:2Q5CXHILLVNCFCG3REXGDWDWLF

not attested not anchored not stored refs pending

Citations and impact of Dutch astronomy

P.C. van der Kruit, P. Kamphuis

arxiv:1011.5311 v1 · 2010-11-24 · astro-ph.IM · cs.DL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q5CXHILLVNCFCG3REXGDWDWLF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:34:47.582238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d43a2b9d0b5d5a2288db892e61d876597d97bb6b0a7fcc460e83825175c9914f

Aliases

arxiv: 1011.5311 · arxiv_version: 1011.5311v1 · doi: 10.48550/arxiv.1011.5311 · pith_short_12: 2Q5CXHILLVNC · pith_short_16: 2Q5CXHILLVNCFCG3 · pith_short_8: 2Q5CXHIL

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2Q5CXHILLVNCFCG3REXGDWDWLF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d43a2b9d0b5d5a2288db892e61d876597d97bb6b0a7fcc460e83825175c9914f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f53938b9215a63b9711174644fcf6da521257c345cb0c167424b686d8ceb23d3",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-11-24T07:52:47Z",
    "title_canon_sha256": "6a972470c537ab3a93bd397d489a7800673bcd528acfa9a215d4eb4955421ff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5311",
    "kind": "arxiv",
    "version": 1
  }
}